Home / 122,733,526.52-169,372,221.87-66,978,947.12

Finding the Fourth Proportional to 122,733,526.52, 169,372,221.87 and 66,978,947.12

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Solution

The fourth proportional to 122,733,526.52, 169,372,221.87 and 66,978,947.12 is: 92,430,922.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,733,526.52 : 169,372,221.87 = 66,978,947.12 : x
  2. Step 2: Convert to fraction form
    122,733,526.52/169,372,221.87 = 66,978,947.12/x
  3. Step 3: Cross multiply
    122,733,526.52x = 169,372,221.87 × 66,978,947.12
  4. Step 4: Simplify right side
    122,733,526.52x = 11,344,373,092,227,638
  5. Step 5: Solve for x
    x = 11,344,373,092,227,638/122,733,526.52
  6. Step 6: Final answer
    x = 92,430,922.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.